Finding the Fourth Proportional to 95,721,321.54, 132,156,515.67 and 78,122,265.99
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Solution
The fourth proportional to 95,721,321.54, 132,156,515.67 and 78,122,265.99 is: 107,858,586.82
Step by Step Solution
- Step 1: Write the proportion equation
95,721,321.54 : 132,156,515.67 = 78,122,265.99 : x - Step 2: Convert to fraction form
95,721,321.54/132,156,515.67 = 78,122,265.99/x - Step 3: Cross multiply
95,721,321.54x = 132,156,515.67 × 78,122,265.99 - Step 4: Simplify right side
95,721,321.54x = 10,324,366,469,483,342 - Step 5: Solve for x
x = 10,324,366,469,483,342/95,721,321.54 - Step 6: Final answer
x = 107,858,586.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.